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Full text of "Mac Mini G4 Service Manual (2005)(Apple Computers)"

I Service Source 




Mac mini 







© 2005 Apple Computer, Inc. All rights reserved. 



Mac mini 



Mac mini - 1 



I Service Source 




Take Apart 



Mac mini 



© 2005 Apple Computer, Inc. All rights reserved. 




General Information 



Tools 

The following tools are required to service the computer: 

• ESD wriststrap and mat 

• Jeweler's #0 Phillips screwdriver 

• Jeweler's #1 Phillips screwdriver 

• Phillips #2 screwdriver 

• Black stick (922-5065), or other nonconductive nylon or plastic tool 

• Needlenose pliers 

• Soft cloth (to protect removed parts from scratches) 

• Screw tray 

• Putty knife (922-6761), 1.5 inch (38 mm), flexible blade 




General Information 



Mac mini Take Apart - 1 



Modify the Putty Knife 

1 . If you don't order a modified putty knife (922-6761) from Apple Service, purchase a 
putty knife with a 1 .5-inch (38 mm), flexible metal blade. 




2. Using sandpaper (150 grit), file down the end of the putty knife (on one side) until it's 
slightly beveled. Rub the edge of the putty knife back and forth for about 2 minutes on 
the sandpaper. 




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2 - Mac mini Take Apart 



General Information 



Serial Number Location 

The product serial number and Ethernet ID are located on the bottom housing. 



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General Information 



Mac mini Take Apart - 3 



Thermal Pad 

The thermal pad is located on the bottom housing. A new thermal pad is included with the 
logic board and the bottom housing, and the pads can be ordered separately as a kit (part 
number 922-6749). 

Replace the pad when: 

• the logic board or the bottom housing is replaced 

• the pad is torn, withered, or damaged 

Important: Never use thermal paste in place of the thermal pad. You must replace the 
thermal pad with a new identical pad. 

Procedure 

1 . Remove the original pad from the bottom housing or the logic board using a black stick 
or other nonconductive nylon tool. 

2. Remove the protective backing on the new thermal pad. Note: Avoid unnecessary 
contact with either side of the thermal pad as dirt and body oils reduce the thermal 
pad's conductivity. 

3. Place the new thermal pad on the bottom housing (as shown). Make sure the thermal 
pad has even contact with the bottom housing. There should be no air pockets. 




4. Replace the logic board. 



4 - Mac mini Take Apart 



General Information 




Top Housing 



Tools 

The only tool required for this procedure is a modified putty knife (part number 922-6761) 

Preliminary Steps 

1 . Shut down the computer. 

Warning: Always shut down the computer before opening it to avoid damaging its 
internal components or the components you are installing. Do not open the computer 
or attempt to install items inside it while it is on. 

2. Unplug all external cables from the computer except the power cord. 

3. Touch the metal case to discharge any static electricity from your body. 

Important: Always discharge static before you touch any parts or install any 
components inside the computer. To avoid generating static electricity, do not walk 
around the room until you have finished working and closed the computer. 

4. Unplug the power cord. 

5. Put on an ESD wrist strap. 



Top Housing Mac mini Take Apart - 5 



Removal Procedure 

Caution: To avoid scratching the case, use caution when using the putty knife. 

1 . Place the computer on a clean, flat surface. 

2. Turn the computer over so the ports are facing you and the bottom of the computer 
(gray color) is facing up. 

3. Hold the putty knife with the beveled edge facing the bottom housing. Insert the tool 
into the gap where the metal housing and the bottom assembly come together on the 
left side of the computer. Important: Be extremely careful not to scratch or dent the 
top or bottom housing when inserting the tool 




6 - Mac mini Take Apart 



Top Housing 



4. Gently release the internal latches by prying the tool away from the computer. 

Note: You will hear little popping sounds as the latches release and the bottom 
moves away from the top housing, creating a gap at the top of the I/O panel. 




5. Repeat the procedure on the right side of the unit. 




Top Housing 



Mac mini Take Apart - 7 



6. Push the I/O panel upward until the top housing is removed. The popping sounds will 
continue as you push the I/O panel; this is normal. 




7. Set the top housing aside. 




8 - Mac mini Take Apart 



Top Housing 



Replacement Procedure 

1 . Align the rear I/O panel with the top housing. Make sure all the white latches on the 
sides of the unit are aligned as shown in the photo below 



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2. Squeeze the unit together firmly as shown. 




Top Housing 



Mac mini Take Apart - 9 



3. If the computer doesn't go together, check the EMI tab alignment and try again. Check 
that the metal tabs aren't bent. 

Work your hands around the unit squeezing the top and bottom until they snap 
together and there are no gaps. 



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10- Mac mini Take Apart 



Top Housing 




AirPort Antenna and AirPort 
Extreme Card 



Tools 

This procedure requires the following tools: 

• Black stick (or other nonconductive nylon or plastic tool) 

• Jeweler's #0 Phillips screwdriver 

• Kapton tape 

Preliminary Steps 

Before you begin, remove the top housing. 



Part Location 





AirPort Antenna and AirPort Extreme Card 



Mac mini Take Apart - 11 



Removal Procedure 

1 . Locate the AirPort antenna. 




2. Using a black stick, push the black latch (see inset) toward the I/O ports to release the 
antenna from the internal frame. 




12- Mac mini Take Apart 



AirPort Antenna and AirPort Extreme Card 



4. Carefully lift the antenna up and off the internal frame. Free the antenna from the 
kapton tape (circled). Important: Take care handling the AirPort antenna as a bent or 
warped antenna will affect AirPort connectivity. 




5. Set the AirPort antenna off to the side. Note: The AirPort Extreme card and antenna 
cable are connected to the mezzanine board located under the internal frame. 




AirPort Antenna and AirPort Extreme Card 



Mac mini Take Apart - 13 



6. Locate the Bluetooth antenna. 




7. Pull the Bluetooth antenna up and out of the openings on the plastic rail. Free the 
antenna cable from the kapton tape. Important: Take care handling the Bluetooth 
antenna as a bent or warped antenna will affect Bluetooth connectivity. 




14- Mac mini Take Apart 



AirPort Antenna and AirPort Extreme Card 



8. Set the Bluetooth antenna off to the side and out of the way. Note: The Bluetooth 
board is connected to the mezzanine board located under the internal frame. 




9. Free the power button cable from the kapton tape on the internal frame. 




AirPort Antenna and AirPort Extreme Card 



Mac mini Take Apart - 15 



10. With a jeweler's # Phillips screwdriver, remove 3 screws on the internal frame. 




1 1 . Lift the internal frame straight up. 



JS- 




16- Mac mini Take Apart 



AirPort Antenna and AirPort Extreme Card 



12. Gently guide the Bluetooth and Airport antenna cables down through the opening in 
the internal frame. 




13. Set the internal frame aside. 




AirPort Antenna and AirPort Extreme Card 



Mac mini Take Apart - 17 



14. Locate the mezzanine board on the logic board. 




15. To access the AirPort Extreme card remove the two screws on the mezzanine board 
with a jeweler's # Phillips screwdriver. Pull the mezzanine board straight up and off 
the logic board connector. 




18- Mac mini Take Apart 



AirPort Antenna and AirPort Extreme Card 



16. Turn over the mezzanine board. With your fingernail or black stick, remove the AirPort 
antenna cable (circled) from the AirPort Extreme card. Remove the kapton tape that 
secures the card to the mezzanine board. Pull the AirPort Extreme card out of the 
connector on the mezzanine board. 




AirPort Antenna and AirPort Extreme Card 



Mac mini Take Apart - 19 



Replacement Procedure 

1 . Install the AirPort Extreme card into the connector on the mezzanine board and 
replace the kapton tape as shown. Plug the AirPort antenna cable into the opening on 
the end of the AirPort Extreme card. 




2. Turn over the mezzanine board so the AirPort Extreme card is facing down. Connect 
the mezzanine board to the connector on the logic board. Replace the two screws on 
the mezzanine board. 




20 - Mac mini Take Apart 



AirPort Antenna and AirPort Extreme Card 



3. Make sure that the AirPort antenna cable is firmly inserted into the AirPort Extreme 
card. If the connector is not fully inserted, you'll see a large portion of the connector 
collar. For details see Knowledge Base article 108039, "Properly attaching the 
antenna on an AirPort Extreme card." 




4. Hold the internal frame over the logic board as shown. Route the AirPort and 
Bluetooth antenna cables up through the opening in the internal frame. 




AirPort Antenna and AirPort Extreme Card 



Mac mini Take Apart - 21 



5. Lower the internal frame into place. 




6. Route the antenna cables to the right side of the interconnect board on the internal 
frame as you continue lowering the internal frame onto the logic board. 



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22 - Mac mini Take Apart 



AirPort Antenna and AirPort Extreme Card 



Replace the three screws on the internal frame. 




8. Replace the Bluetooth antenna. Secure the antenna cable with kapton tape. 

Important: Take care handling the Bluetooth antenna as a bent or warped antenna 
will affect Bluetooth connectivity. 




AirPort Antenna and AirPort Extreme Card 



Mac mini Take Apart - 23 



9. Replace the AirPort Extreme antenna. Secure the cable with kapton tape. 

Important: Take care handling the AirPort antenna as a bent or warped antenna 
will affect AirPort connectivity. 




1 0. Gently fasten the antenna onto the internal frame. The antenna is held in place by the 
black clip and black post (shown below). 



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24 - Mac mini Take Apart 



AirPort Antenna and AirPort Extreme Card 



1 1 . Secure the power button cable to the internal frame with the kapton tape. 




12. Replace the top housing. 



AirPort Antenna and AirPort Extreme Card 



Mac mini Take Apart - 25 




Bluetooth Antenna and 
Bluetooth Board 



Tools 

This procedure requires the following tools: 

• Black stick (or other nonconductive nylon or plastic tool) 

• Jeweler's #0 Phillips screwdriver 

• Kapton tape 

Preliminary Steps 

Before you begin, remove the top housing. 



Part Location 




26 - Mac mini Take Apart 



Bluetooth Antenna and Bluetooth Board 



Removal Procedure 

1 . Locate the Bluetooth antenna. 




Pull the Bluetooth antenna up and out of the openings on the plastic rail. Free the 
antenna cable from the kapton tape. Important: Take care handling the Bluetooth 
antenna as a bent or warped antenna will affect Bluetooth connectivity. 




Bluetooth Antenna and Bluetooth Board 



Mac mini Take Apart - 27 



3. Set the Bluetooth antenna off to the side and out of the way. Note: The Bluetooth 
board is connected to the mezzanine board located under the internal frame. 




4. Locate the AirPort antenna. 




28 - Mac mini Take Apart 



Bluetooth Antenna and Bluetooth Board 



5. Using the black stick push the black latch (see inset) toward the I/O ports to release 
the antenna from the internal frame. 




4. Carefully lift the antenna up and off the internal frame. Free the antenna from the 
kapton tape (circled). Important: Take care handling the AirPort antenna as a bent or 
warped antenna will affect AirPort connectivity. 




Bluetooth Antenna and Bluetooth Board 



Mac mini Take Apart - 29 



5. Set the AirPort antenna off to the side. Note: The AirPort Extreme card and antenna 
cable are connected to the mezzanine board located under the internal frame. 




6. Free the power button cable from the kapton tape on the internal frame. 




30 - Mac mini Take Apart 



Bluetooth Antenna and Bluetooth Board 



7. With a jeweler's #0 Phillips screwdriver, remove 3 screws on the internal frame. 




8. Lift the internal frame straight up. 



JS- 




Bluetooth Antenna and Bluetooth Board 



Mac mini Take Apart - 31 



9. Gently guide the Bluetooth and Airport antenna cables through the opening in the 
frame. 




10. Set the internal frame aside. 




32 - Mac mini Take Apart 



Bluetooth Antenna and Bluetooth Board 



1 1 . Locate the mezzanine board on the logic board. 




1 2. With your fingernail disconnect the Bluetooth antenna cable from the Bluetooth board. 




Bluetooth Antenna and Bluetooth Board 



Mac mini Take Apart - 33 



13. Remove the two screws on the mezzanine board. Lift the mezzanine board straight up 
and off the logic board connector. Caution: The AirPort antenna cable is still attached 
to the mezzanine board. Remove the AirPort antenna cable if required to perform the 
repair. 




14. Turn over the mezzanine board. With a jeweler's #0 Phillips screwdriver remove the 
two screws on the Bluetooth board. Pull the Bluetooth board off the connector on the 
mezzanine board. 



922-6680 




34 - Mac mini Take Apart 



Bluetooth Antenna and Bluetooth Board 



Replacement Procedure 

1 . Install the Bluetooth board onto tthe mezzanine board. With a jeweler's #0 Phillips 
screwdriver replace the two screws. 




2. Connect the mezzanine board to the logic board. With a jeweler's #0 Phillips 
screwdriver replace the two mezzanine board screws. 




Bluetooth Antenna and Bluetooth Board 



Mac mini Take Apart - 35 



3. Connect the Bluetooth antenna cable to the Bluetooth board. Press the cable firmly 
onto the Bluetooth board, until it clicks into place. Note: The Bluetooth antenna can be 
connected before installing the mezzanine board. 




4. Locate the internal frame. 




36 - Mac mini Take Apart 



Bluetooth Antenna and Bluetooth Board 



5. Hold the internal frame over the logic board as shown. Route the AirPort and 
Bluetooth antenna cables through the opening in the internal frame. 




6. Lower the internal frame into place. 




Bluetooth Antenna and Bluetooth Board 



Mac mini Take Apart - 37 



7. Route the antenna cables to the right side of the interconnect board on the internal 
frame. Lower the internal frame onto the logic board. 



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8. Replace the three screws on the internal frame. 




38 - Mac mini Take Apart 



Bluetooth Antenna and Bluetooth Board 



9. Replace the Bluetooth antenna and secure the antenna cable with kapton tape. 
Important: Take care handling the Bluetooth antenna as a bent or warped antenna 
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10. Replace the AirPort Extreme antenna and secure the cable with kapton tape. 

Important: Take care handling the AirPort antenna as a bent or warped antenna will 
affect AirPort connectivity 




Bluetooth Antenna and Bluetooth Board 



Mac mini Take Apart - 39 



1 1 . Gently fasten the antenna onto the internal frame. The antenna is held in place by the 
black clip and black post (shown below). 



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12. Secure the power button cable to the internal frame with the kapton tape. 




13. Replace the top housing. 



40 - Mac mini Take Apart 



Bluetooth Antenna and Bluetooth Board 




Internal Frame 



Tools 

The only tool required for this procedure is a Phillips #0 screwdriver. 

Preliminary Steps 

Before you begin, remove the top housing. 

Part Location 




Internal Frame 



Mac mini Take Apart - 41 



Removal Procedure 

1 . Free the power button cable from the kapton tape on the internal frame. 




2. Locate the Bluetooth antenna. 




42 - Mac mini Take Apart 



Internal Frame 



3. 



Pull the Bluetooth antenna up and out of the openings on the plastic rail. Free the 
antenna cable from the kapton tape. Important: Take care handling the Bluetooth 
antenna as a bent or warped antenna will affect Bluetooth connectivity. 




Set the Bluetooth antenna off to the side and out of the way. Note: The Bluetooth 
board and antenna cable are connected to the mezzanine board located under the 
internal frame. 




Internal Frame 



Mac mini Take Apart - 43 



5. Locate the AirPort antenna. 



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6. Using the black stick push the black latch (see inset) toward the I/O ports to release 
the antenna from the internal frame. 




44 - Mac mini Take Apart 



Internal Frame 



4. Carefully lift the antenna off the frame. Free the antenna from the kapton tape 
(circled). Important: Take care handling the AirPort antenna as a bent or warped 
antenna will affect AirPort connectivity 




5. Set the AirPort antenna off to the side. Note: The AirPort card and antenna cable are 
connected to the mezzanine board located under the internal frame. 




Internal Frame 



Mac mini Take Apart - 45 



6. With a jeweler's # Phillips screwdriver remove three screws on the internal frame. 




7. Lift the internal frame straight up. 




46 - Mac mini Take Apart 



Internal Frame 



8. Gently guide the Bluetooth and Airport antenna cables down through the opening in 
the frame. Set the antenna cables off to the side. 




9. The following parts are connected to the internal frame (black plastic): 

• hard drive 

• optical drive 

• fan 

• speaker 

• interconnect board 

Refer to the individual take-apart procedures to remove or replace any of these parts. 




Internal Frame 



Mac mini Take Apart - 47 



Replacement Procedure 

1 . If you removed any service parts from the internal frame, replace them. 




2. Hold the internal frame over the logic board as shown. Route the AirPort and 
Bluetooth antenna cables up through the opening in the internal frame. 




48 - Mac mini Take Apart 



Internal Frame 



3. Lower the internal frame into place. 




4. Route the antenna cables to the right side of the interconnect board on the internal 
frame as you continue lowering the internal frame onto the logic board. 



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Internal Frame 



Mac mini Take Apart - 49 



5. Replace the three screws on the internal frame. 




Replace the Bluetooth antenna and secure the antenna cable with kapton tape. 
Important: Take care handling the Bluetooth antenna as a bent or warped antenna 
will affect Bluetooth connectivity. 




50 - Mac mini Take Apart 



Internal Frame 



7. Replace the AirPort Extreme antenna and secure the cable with kapton tape 

Important: Take care handling the AirPort antenna as a bent or warped antenna will 
affect AirPort connectivity. 




8. Gently fasten the antenna onto the internal frame. The antenna is held in place by the 
black clip and black post (shown below). 



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Internal Frame 



Mac mini Take Apart - 51 



9. Secure the power button cable to the internal frame with the kapton tape. 




10. Replace the top housing. 



52 - Mac mini Take Apart 



Internal Frame 




Hard Drive 



Tools 

This procedure requires the following tools: 

• Phillips #2 screwdriver 

• Phillips #2 screwdriver, angled 

• Phillips #0 screwdriver 

Preliminary Steps 

Before you begin, remove the top housing and the internal frame. 



Part Location 




Hard Drive 



Mac mini Take Apart - 53 



Removal Procedure 

1 . Locate the internal frame. 




2. Turn over the internal frame to locate the hard drive. 




54 - Mac mini Take Apart 



Hard Drive 



3. With a jeweler's #0 screwdriver remove the two fan screws. 




4. Flip the fan to the left to access the hard drive screws (see next step). 




Hard Drive 



Mac mini Take Apart - 55 



5. Using a #2 Phillips screwdriver, remove the two hard drive screws (shown by the 
dotted line) on the internal frame. You may need an angled screwdriver to access the 
screw on the right. Important: Don't remove the kapton tape from the internal frame 
near the screw on the right. The hole is covered to direct airflow within the internal 
frame. 




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4. Remove the remaining two hard drive screws and disconnect the fan and speaker 
cables. 




56 - Mac mini Take Apart 



Hard Drive 



5. Remove the kapton tape to release the cables. 




6. With a black stick or other nonconductive tool, pry the hard drive off the connector on 
the interconnect board. Lift the hard drive out of the internal frame and set it aside. 




Hard Drive 



Mac mini Take Apart - 57 



Replacement Procedure 



1 . With the colored side of the hard drive face up, place the hard drive into the internal 
frame and connect it to the black connector on the interconnect board. 




2. Replace the kapton tape 

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58 - Mac mini Take Apart 



Hard Drive 



3. Replace two screws and connect the fan and speaker cables to the interconnect 
board. 




4. Replace the two hard drive screws on the inside of the internal frame. 



922-6681 





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Hard Drive 



Mac mini Take Apart - 59 



4. Flip the fan back into the internal frame. 




4. Replace the two fan screws. 



922-6682 




60 - Mac mini Take Apart 



Hard Drive 



5. Make sure the fan cables are routed and tucked under the clip as shown. 




6. Turn the internal frame over 




7. Replace the internal frame. 

8. Replace the top housing. 



Hard Drive 



Mac mini Take Apart - 61 




Optical Drive 



Tools 

This procedure requires the following tools: 

• Black stick (or other nonconductive nylon or plastic tool) 

• Jeweler's #0 Phillips screwdriver 



Preliminary Steps 

Before you begin remove the following: 

• Top housing 

• AirPort antenna (if present) 

• Bluetooth antenna (if present) 



Part Location 




62 - Mac mini Take Apart 



Optical Drive 



Removal Procedure 

1 . Using a jeweler's #0 Phillips screwdriver, remove the four optical drive screws and the 
two interconnect board screws. 



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2. Using a black stick, pry the optical drive off the interconnect board (#1) and slide the 
optical drive (#2) off the internal frame. 




Optical Drive 



Mac mini Take Apart - 63 



Replacement Procedure 

1 . Connect the optical drive to the interconnect board and replace the two interconnect 
board screws. 




W 922-6680 % % 



4. Replace the four optical drive screws. 



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64 - Mac mini Take Apart 



Optical Drive 



5. Replace the Bluetooth antenna (if present). 

6. Replace the AirPort antenna (if present). 

7. Replace the top housing. 



Optical Drive Mac mini Take Apart - 65 




Fan 



Tools 

The only tool required for this procedure is a jeweler's #0 Phillips screwdriver. 

Preliminary Steps 

Before you begin, remove the top housing and the internal frame. 

Part Location 

Note: The fan is located under the optical drive. 




66 - Mac mini Take Apart 



Fan 



Removal Procedure 

1 . Turn over the internal frame to locate the fan. Remove the two fan screws with a 
jeweler's #0 Phillips screwdriver. 



922-6682 




2. Free the fan cable from the clip on the internal frame. 




Fan 



Mac mini Take Apart - 67 



4. Remove the tape securing the fan and speaker cables. 




4. Free the fan cable (top cable) from another clip on the inside of the internal frame. 




68 - Mac mini Take Apart 



Fan 



4. Disconnect the fan cable (on the right) from the interconnect board. 




4. Lift the fan out of the internal frame. 



Fan 



Mac mini Take Apart - 69 



Replacement Procedure 

1 . Place the fan in the internal frame. 

2. Replace two fan screws, the kapton tape, and connect the fan cable (on the right) to 
the interconnect board. 




3. Route the fan cable through the clip on the inside of the internal frame. 




70 - Mac mini Take Apart 



Fan 



4. Route the fan cable under the clip on the outside of the internal frame. 




5. Turn over the internal frame. 




6. Replace the internal frame. 

7. Replace the top housing. 



Fan 



Mac mini Take Apart - 71 




Interconnect Board 



Tools Required 

This procedure requires the following tools: 

• Jeweler's #0 Phillips screwdriver 

• Black stick or nonconductive tool 



Preliminary Steps 

Before you begin, remove the top housing and the internal frame. 



Part Location 




72 - Mac mini Take Apart 



Interconnect Board 



Removal Procedure 

1 . Locate the interconnect board. Using a a jeweler's #0 Phillips screwdriver, remove the 
two screws. 




922-6680 % « 



2. Turn over the internal frame. Disconnect the speaker cable (on the left) and fan cable 
(on the right) from the interconnect board. 




Interconnect Board 



Mac mini Take Apart - 73 



With a black stick or other nonconductive tool, slightly pry the interconnect board off 
hard drive pins. With your fingers wiggle the interconnect board off the hard drive pins. 
Caution: Be careful not to bend the hard drive pins. 




74 - Mac mini Take Apart 



Interconnect Board 



Replacement Procedure 

1 . With the gold pins on the interconnect board facing up, press the interconnect board 
onto the hard drive and optical drive connectors. Replace the optical drive screws 
(circled). Caution: Be careful not to bend the hard drive pins when connecting the 
interconnect board. 




2. Connect the speaker cable (on the left) and fan cable (on the right) to the interconnect 
board. 




Interconnect Board 



Mac mini Take Apart - 75 



3. Turn over the internal frame. 




4. Replace the internal frame. 

5. Replace the top housing. 



76 - Mac mini Take Apart 



Interconnect Board 




Memory 



Tools 

The only tool required for this procedure is a Jeweler's #0 Phillips screwdriver. 

Preliminary Steps 

Before you begin, remove the top housing. 

Part Location 




Memory 



Mac mini Take Apart - 77 



Removal Procedure 

1 . Remove the Bluetooth antenna and the kapton tape. Important: Take care handling 
the Bluetooth antenna as a bent or warped antenna will affect Bluetooth connectivity. 

Set the antenna off to the side. 




2. To release the memory from its slot, push down on the two side latches. Then pull the 
memory module out of the slot. Caution: Be careful that the latch on the left doesn't 
damage the EMI clip near the I/O port. 




78 - Mac mini Take Apart 



Memory 



Replacement Procedure 

1 . Replace the memory module by lining up the notch on the module with the notch on 
the slot. 

2. Press firmly on the memory module until it clicks into place. Use your thumb and index 
finger to push the module into the slot. The clips will secure the memory in place. 




3. Replace the Bluetooth antenna and kapton tape. Important: Take care handling the 
Bluetooth antenna as a bent or warped antenna will affect Bluetooth connectivity 




4. Replace the top housing. 



Memory 



Mac mini Take Apart - 79 




Mezzanine Board 



Tools 

This procedure requires the following tools: 

• Jeweler's #0 Phillips screwdriver 

• Black stick (or other nonconductive nylon or plastic tool) 

Preliminary Steps 

Before you begin, remove the top housing and the internal frame. 



Part Location 




80 - Mac mini Take Apart 



Mezzanine Board 



Removal Procedure 

Using a jeweler's #0 Phillips screwdriver, remove the two screws from the mezzanine 
board. Pull the mezzanine board straight up and off the logic board. 




Mezzanine Board 



Mac mini Take Apart - 81 



Replacement Procedure 



1 . Connect the mezzanine board to the logic board connector. Replace the two 
mezzanine screws. 




2. Replace the internal frame. 

3. Replace the top housing. 



82 - Mac mini Take Apart 



Mezzanine Board 




Modem Board 



Tools 

This procedure requires the following tools: 

• Jeweler's #0 Phillips screwdriver 

• Black stick (or other nonconductive nylon or plastic tool) 

Preliminary Steps 

Before you begin, remove the top housing and the internal frame. 



Part Location 




Modem Board 



Mac mini Take Apart - 83 



Removal Procedure 

1 . Using a jeweler's #0 Phillips screwdriver, remove the two screws from the modem 
board. 




2. Using a black stick or other nonconductive nylon or plastic tool, pry the modem board 
off the logic board connector. 




84 - Mac mini Take Apart 



Modem Board 



3. Disconnect the RJ-1 1 cable from the modem board. Set the modem board aside. 




Modem Board 



Mac mini Take Apart - 85 



Replacement Procedure 

1 . Connect the RJ-1 1 cable to the modem board. 




2. Using a jeweler's #0 Phillips screwdriver, replace the two modem screws. 




86 - Mac mini Take Apart 



Modem Board 



3. Replace the internal frame. 

4. Replace the top housing. 



Modem Board Mac mini Take Apart - 87 




Logic Board 



Tools 

This procedure requires the following tools: 

• Jeweler's #0 Phillips screwdriver 

• Black stick (or other nonconductive nylon or plastic tool) 

Preliminary Steps 

Before you begin, remove the top housing and the internal frame. 



Part Location 




88 - Mac mini Take Apart 



Logic Board 



Removal Procedure 

1 . Using a jeweler's #0 Phillips screwdriver, remove the logic board screw. Note: The 
logic board screw and the internal frame screws look similar; however, the logic board 
screw is shorter than the screws used for the internal frame. 



922-6684 




2. Disconnect the power-on cable from the connector on the logic board. 




Logic Board 



Mac mini Take Apart - 89 



3. Using a black stick or other nonconductive tool, disconnect the LED cable from the 
connector on the logic board. Note: This connector is very small. Don't pull on the 
cable; pull on the connector. 




4. 



After disconnecting the LED cable, gently push the LED away from the board to free 
the logic board from the bottom housing. Note: Don't bend the LED too much or it 
could snap off the bottom housing. 




90 - Mac mini Take Apart 



Logic Board 



5. Tilt the board at an angle and pull the logic board away from the ports. 




Note: If you are returning the logic board to Apple service, remove the following: 

• RJ-1 1 connector 

• memory 

• mezzanine board 

• modem board 

For instructions, refer to the replacement procedures for these individual parts. 



Logic Board 



Mac mini Take Apart - 91 



Replacement Procedure 

1 . Replace the thermal pad. 

Replace the thermal pad on the bottom housing whenever you replace the logic 
board or the bottom housing, or if the pad is torn, withered, or damaged. For more 
information, refer to the "Thermal Pad" procedure in this chapter. 




2. If necessary, install the following on the logic board: 

• RJ-1 1 connector 

• modem board 

• mezzanine board 

• memory 

For instructions, refer to the replacement procedures for these individual parts. 



92 - Mac mini Take Apart 



Logic Board 



3. Insert the logic board into the bottom housing. Line up the ports on the board with the 
openings on the bottom housing. 




4. Gently push the LED away from the board as you lower the board into the bottom 
housing. Note: Don't bend the LED too much or it could snap off the bottom housing. 




Logic Board 



Mac mini Take Apart - 93 



5. Connect the power-on cable to the logic board. 




/ 



6. Replace the logic board screw. 



922-6684 




94 - Mac mini Take Apart 



Logic Board 



7. Replace the internal frame. 

8. Replace the top housing. 



Logic Board Mac mini Take Apart - 95 




Bottom Housing 



Tools 

No tools are required for this procedure. 

Preliminary Steps 

Before you begin, remove the following: 

• top housing 

• internal frame 

• logic board 

Part Location 



s* 



>^ 




96 - Mac mini Take Apart 



Bottom Housing 



Removal Procedure 

Once the logic board is removed you are left with the bottom housing. 




Bottom Housing 



Mac mini Take Apart - 97 



Replacement Procedure 

1 . Replace the thermal pad. 

Important: Replace the thermal pad on the bottom housing whenever you replace 
the logic board or the bottom housing, or if the pad is torn, withered, or damaged. For 
more information, refer to the "Thermal Pad" procedure in this chapter. 




2. If necessary, install the following on the logic board: 

• modem board 

• mezzanine board 

• memory 

For instructions, refer to the replacement procedures for these individual parts. 

3. Replace the logic board. 

4. Replace the internal frame. 

5. Replace the top housing. 



98 - Mac mini Take Apart 



Bottom Housing 




RJ- 1 1 Connector 



Tools 

This procedure requires the following tools: 

• Black stick (or other nonconductive nylon or plastic tool) 

Preliminary Steps 

Before you begin, remove the following: 

• top housing 

• internal frame 

• logic board 

• modem board 



Part Location 




RJ-1 1 Connector 



Mac mini Take Apart - 99 



Removal Procedure 

1 . Disconnect the RJ-1 1 cable from the modem board. 




2. Turn over the logic board. Using a black stick, push the RJ-1 1 connector off the logic 
board. 




100- Mac mini Take Apart 



RJ-1 1 Connector 



Replacement Procedure 

1 . Slide the RJ-1 1 connector onto the logic board. 




2. Replace the modem. 

3. Replace the logic board. 

4. Replace the internal frame. 

5. Replace the top housing. 



RJ-1 1 Connector 



Mac mini Take Apart - 101 




Battery 



Tools 

No tools are required for this procedure. 

Preliminary Steps 

Before you begin, remove the top housing and the internal frame. 

Part Location 




102- Mac mini Take Apart 



Battery 



Removal Procedure 

Using your finger, push the battery in and up to release it from the battery holder. 




Battery 



Mac mini Take Apart - 103 



Replacement Procedure 

1 . Push the battery into the battery holder. 




2. Replace the internal frame. 

3. Replace the top housing. 



104- Mac mini Take Apart 



Battery 




Speaker 



Tools 

The following tools are required for this procedure: 

• Jeweler's #1 Phillips 

• black stick or other nonconductive tool 



Preliminary Steps 

Before you begin, remove the top housing and the internal frame. 



Part Location 




Speaker 



Mac mini Take Apart - 105 



Removal Procedure 

1 . Using a jeweler's #1 Phillips screwdriver, remove four screws, free the speaker cable 
from the cable clip, remove the kapton tape, and disconnect the speaker connector 
(on the right) from the interconnect board. 




2. With your finger or black stick, pry the speaker off the internal frame. Note: Watch that 
the rubber grommets for the speakers don't fall off as you remove the speaker. 




106- Mac mini Take Apart 



Speaker 



Replacement Procedure 

1 . Position the speaker into the internal frame. Replace the four screws, secure the cable 
under the cable clip, replace the kapton tape, and connect the speaker cable to the 
interconnect board. 



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2. Replace the internal frame. 

3. Replace the top housing. 



Speaker 



Mac mini Take Apart - 107 



I Service Source 




Troubleshooting 



Mac mini 



© 2005 Apple Computer, Inc. All rights reserved. 




General Information 



Serial Number Location 

The product serial number and Ethernet ID are located on the bottom housing. 



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General Information 



Mac mini Troubleshooting - 1 



Thermal Pad 

The thermal pad is located on the bottom housing. A new thermal pad is included with the 
logic board and the bottom housing, and the pads can be ordered separately as a kit (part 
number 922-6749). 

Replace the pad when: 

• the logic board or the bottom housing is replaced 

• the pad is torn, withered, or damaged 

Important: Never use thermal paste in place of the thermal pad. You must replace the 
thermal pad with a new identical pad. 

Procedure 

1 . Remove the original pad from the bottom housing or the logic board using a black stick 
or other nonconductive nylon tool. 

2. Remove the protective backing on the new thermal pad. Note: Avoid unnecessary 
contact with either side of the thermal pad as dirt and body oils reduce the thermal 
pad's conductivity. 

3. Place the new thermal pad on the bottom housing (as shown). Make sure the thermal 
pad has even contact with the bottom housing. There should be no air pockets. 




4. Replace the logic board. 



2 - Mac mini Troubleshooting 



General Information 



Ports 

The Mac mini ports are shown below. 

Power 



Security 
Slot 




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Power — ' 
Port 



Ethernet 



Modem 

Port 

(Optional) 



Video Out 
Port 



USB 2.0 



FireWire 
400 



•— Headphone 
Port 



General Information 



Mac mini Troubleshooting - 3 



DVI to VGA Adapter 

The Mac mini comes with a small DVI to VGA adapter in the box. This adapter allows you 
to use your Mac mini's DVI port with a VGA-compatible display. 




Replacement adapter 

If you need to replace the DVI to VGA adapter that came with your Mac mini, this Apple 
DVI to VGA Display Adapter (model M8754G/A) is functionally equivalent, and can be 
purchased through the Apple Store. This is the same adapter that came with some other 
Macintosh computers. 

Other adapters 

You can also use Apple's DVI to Video Adapter (model M9267G/A), which outputs S-Video 
and Composite video, allowing you to connect your Mac mini directly to a television or 
older projector. 



4 - Mac mini Troubleshooting General Information 



Compatible Apple Displays 

The Mac mini has a DVI-I port on the back of the computer that allows you to connect any 
display that uses a DVI interface. 

In addition, the Mac mini comes with a DVI to VGA adapter (shown below), if you prefer to 
connect a VGA monitor to your Mac mini. 




If you connect a DVI monitor to the Mac mini, it can display digital resolutions up to 1 920 x 
1200 pixels, depending on your monitor. If you use the included DVI to VGA adapter, the 
display port supports analog resolutions up to 1920 x 1080 pixels, depending on your 
monitor. 

The following Apple displays can be used with a Mac mini: 

Table 1: Compatible Displays 



Display Name 


Marketing 
Part Number 


Display 

Connector 

Type 


Compatible? 


Apple Cinema HD Display (23-inch 
DVI) 


M9178LL/A 


DVI 


Compatible 


Apple Cinema Display (20-inch DVI) 


M9177LL7A 


DVI 


Compatible 


Apple Cinema HD Display (23-inch flat 
panel) 


M8537LL7A 


ADC 


Use DVI to ADC 
adapter 


Apple Cinema Display (20-inch flat 
panel) 


M8893LL7A 


ADC 


Use DVI to ADC 
adapter 


Apple Cinema Display (22-inch ADC) 


M8058LL/A 


ADC 


Use DVI to ADC 
adapter 


Apple Studio Display 21 


M6204LL/A 


VGA 


Use included DVI 
to VGA adapter 


Apple Studio Display 17 (ADC) 


M7649LL/A 


ADC 


Use DVI to ADC 
adapter 


Apple Studio Display 17 


M6221LL/A 


VGA 


Use included DVI 
to VGA adapter 



General Information 



Mac mini Troubleshooting - 5 



Table 1: Compatible Displays 



Display Name 


Marketing 
Part Number 


Display 

Connector 

Type 


Compatible? 


Apple Studio Display LCD (ADC) 


M7928LL/A 


ADC 


Use DVI to ADC 
adapter 


Apple Studio Display LCD (DVI) 


M7612LL/A 


DVI 


Compatible 


Apple Studio Display LCD 


M6356LL/B 


VGA 


Use included DVI 
to VGA adapter 



The following Apple displays are not compatible with a Mac mini: 

Table 2: Displays that are not Compatible 



Display Name 


Marketing 

Part 

Numbers 


Display 

Connector 

type 


Compatible 
? 


Apple Cinema HD Display (30-inch 
DVI) 


M9179LL/A 


DVI 


NOT 
compatible 


Apple Cinema Display (22-inch) 


M7478LL/A 


DVI 


NOT 
compatible 



Refer to Knowledge Base article 300652 for updates to this table. 



6 - Mac mini Troubleshooting 



General Information 



Memory Specifications and Upgrades 

Mac mini computers have a single memory slot. This slot accepts a standard PC2700 or 
PC3200 184-pin DIMM with the following specifications: 

• PC2700 or PC3200 Synchronous DRAM (SDRAM) 

• 2.5 volt 

• 8-byte 

• non-parity 

• 64-bit wide 

• 184-pin module 

• maximum of 16 memory devices on the DIMM 

• unbuffered — do not use registered or buffered SDRAM 

• maximum height of 50 mm 

Using PC3200 memory does not provide additional speed benefits. Although the Mac mini 
supports PC3200 DIMMs, the PC3200 RAM will operate at PC2700 (333 MHz) speeds. 

The Mac mini has a 256 MB base memory configuration, which can be expanded up to a 
maximum of 1 GB.The Mac mini can be configured to order (CTO) with 512 MB or 1 GB of 
SDRAM. Additional memory should be installed by an Apple Authorized Service Provider. 

Video memory 

The Mac mini has 32 MB DDR of soldered SDRAM dedicated for video. Video memory 
cannot be upgraded. 

LED status 

The Mac mini has a power light located on the front of the computer in the bottom right 
corner below the optical drive slot. The LED displays a steady light, no light, or pulses, 
depending on the computer's status. Here's what the Mac mini's LED is telling you. 

Table 3: Mac mini LEDs 



Model 


Startup 


Normal 
Operation 


Display 
Sleep Mode 


Energy 
Saver Mode 


Mac mini 


steady white 


steady white 


steady white 


pulsing white 



General Information 



Mac mini Troubleshooting - 7 



How to Clean Your Mac mini 

Follow these general rules when cleaning the outside of your Mac mini: 

• Use a damp, soft, lint-free cloth. Avoid getting moisture in any openings. 

• Don't use aerosol sprays, solvents, or abrasives. 

Warning: Do not use acetone, alcohol, or any alcohol-based cleaner on your computer. 
Never spray cleaner directly onto your computer. Liquid could drip inside the case and 
cause an electrical shock. 

• Be sure to unplug the power adapter from the wall or power strip before you clean it. 

Procedure 

To clean the Mac mini case, do the following: 

1 . Turn off the computer. 

2. Disconnect the power cord and all accessory devices from the computer. 

3. Wipe the surfaces lightly with a clean, soft cloth dampened with water. 



8 - Mac mini Troubleshooting General Information 




Reset the PMU 



How to Reset the PMU 

The Power Management Unit (PMU) is an integrated circuit (computer chip) typically found 
on a computer's logic board. As its name implies, the PMU is responsible for managing all 
aspects of the computer's power. It controls hard disk spin down, sleep and wake, some 
charging aspects, and how any devices attached to the computer affect sleep. 

If the settings in the PMU become corrupted, it can result in operational anomalies such as 
your computer not turning on, not displaying video, or not waking from sleep, among other 
things. In these situations, you may need to reset your computer's PMU. 

Resetting the PMU will not resolve issues in which the computer stalls or is unresponsive. 
A PMU reset should only be used as a last resort in the case of a hardware failure or when 
the power management system is suspected. Resetting the PMU returns the computer 
hardware, including NVRAM, to default settings and forces the computer to shut down. 

Before you reset the PMU, try restarting the computer instead, which may resolve the 
issue. If the computer has stopped responding, try these steps, in order, until the computer 
responds: 

• Force Quit (Option-Command-Escape) 

• Restart (Control-Command-Power) 

• Force Shut Down (press the power button for 10 seconds) 

If none of the above steps resolved the situation, reset the PMU. 

Reset the PMU with the Top Housing On 

1 . Unplug all cables from the computer, including the power cord. 

2. Wait 10 seconds. 

3. Plug in the power cord while simultaneously pressing and holding the power button on 
the back of the computer. 

4. Let go of the power button. Your computer should start up. 

Important: This procedure also resets the computer's PRAM. Be sure to reset your 
computer's time, date, and other system parameter settings as necessary. 

If none of the above steps resolved the situation, reset the PMU. Follow the procedures on 
the next page. 

Reset the PMU Mac mini Troubleshooting - 9 



Reset the PMU with the Top Housing Off 

You can also reset the PMU by directly pressing the PMU reset switch located on the logic 
board. Follow these steps to access the PMU reset switch on the logic boar 

1 . Unplug all cables from the computer. 

2. Remove the top housing. 

3. If necessary, remove the internal frame to access the battery. 

4. Measure the voltage of the battery in the battery holder. The battery should measure 
2.6V to 3.0V. If the battery does not have minimum voltage, replace the battery. After 
replacing the battery, wait 10 seconds and then reset the PMU (refer to the next step). 
If the battery voltage is good, go on to the next step. 

5. Press the PMU switch on the logic board, located in the rear right corner of the 
machine. Be sure to press it just once. Because of the restricted space, you may need 
to use a black stick to press this switch. 

Warning: Do not press the PMU reset switch a second time because it could 
adversely affect the PMU chip. 




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6. This procedure also resets the computer's PRAM. Be sure to reset your computer's 
time, date, and other system parameter settings as necessary. 



10 - Mac mini Troubleshooting 



Reset the PMU 




Reset PRAM and NVRAM 



Procedure 

1 . Shut down the computer. 

2. Locate the following keys on the keyboard: Command, Option, P, and R. You will need 
to hold these keys down simultaneously in step 4. 

3. Turn on the computer. 

4. Press and hold the Command-Option-P-R keys. You must press this key combination 
before the gray screen appears. 

5. Hold the keys down until the computer restarts and you hear the startup sound for the 
second time. 

6. Release the keys. 

7. Your computer's PRAM and the NVRAM are reset to the default values. The clock 
settings may be reset to a default date on some models. 



Reset PRAM and NVRAM Mac mini Troubleshooting - 11 




Symptom Charts 



How to Use the Symptom Charts 

The Symptom Charts included in this chapter will help you diagnose specific symptoms 
related to the product. Because cures are listed on the charts in the order of most likely 
solution, try the cures in the order presented. Verify whether or not the product continues 
to exhibit the symptom. If the symptom persists, try the next cure. 

Note: If you have replaced a module, reinstall the original module before you proceed to 
the next cure. 



No Power 

The Mac mini won't turn on 

1 . Make sure that the power cord is plugged into a working wall outlet, and that it's 
properly connected to the power adapter. (To check if the wall socket is working, plug 
in a lamp or other electrical device.) 

2. Make sure that the power adapter is properly connected to the power port on the back 
of the computer. 

3. Disconnect all accessories that are plugged into the computer, such as a printer, hub, 
or iPod. 

4. Reset the PMU. (Refer to Reset the PMU mentioned in this chapter.) 

5. Try plugging a different power cord into the computer (if you have a working one 
available). If the computer starts up, replace the old power cord. 

6. Try connecting a different power adapter to the computer (if you have a working one 
available). If the computer starts up, replace the old power adapter. 

7. Replace the logic board. 



12 - Mac mini Troubleshooting Symptom Charts 



No Video 

No video, there is a startup chime, fans, drive spins up, and the power light 
turn on 

1 . Make sure that the monitor is turned on and has power. Make sure that the display's 
power cord is plugged into a working wall outlet, and that it's properly connected to the 
power adapter. (To check if the wall socket is working, plug in a lamp or other electrical 
device.) 

2. Check that all video cable connections to the computer video port and to the monitor 
are properly connected. 

3. Examine the pins on the video cable connector to make sure they are not bent or 
damaged in any way. 

4. Connect a known working display (if you have an extra one available). If you see video 
after doing so, replace your old display. 

5. Reset the computer's parameter RAM. (Refer to Reset the PRAM and NVRAM 
mentioned in this chapter.) 

6. Reset the computer's PMU. (Refer to Reset the PMU mentioned in this chapter.) 

7. Reseat the Mac mini's memory. Make sure the memory chip is a PC2700 (333) or 
PC3200 (400) DIMM. 

8. Remove the DIMM and try replacing it with a working DIMM to test. 

9. Reset the PMU on the logic board. (Refer to Reset the PMU mentioned in this 
chapter.) 

10. Replace the logic board. 

No video on the display 

1 . Verify monitor that is used in testing is known-good and is supported by this computer. 

2. Connect a known working display (if you have an extra one available). If it solves the 
issue, replace your display. 

3. Verify that cables are correctly installed and firmly seated. 

4. Try known-good DVI to VGA adapter. 

5. Replace the adapter cable. 

6. Replace logic board. 

Display shows ghosting (signal reflection) 

1 . Verify monitor that is used in testing is known-good and is supported by this computer. 

2. Connect a known working display (if you have an extra one available). If it solves the 
issue, replace your display. 



Symptom Charts Mac mini Troubleshooting - 13 



3. Verify that cables are correctly installed and firmly seated. 

4. Try known-good DVI to VGA adapter. 

5. Replace the adapter cable. 

6. Replace the logic board. 



14 - Mac mini Troubleshooting Symptom Charts 



AirPort 

AirPort Extreme card not recognized 

If the Mac mini does not recognize an AirPort Extreme card, the card may not be seated 
correctly or it is inoperable. 

1 . Reseat the AirPort Extreme card making sure it is securely connected into the AirPort 
Extreme card slot on the mezzanine board. 




2. Make sure the kapton tape is applied properly to hold the AirPort Extreme card in 
place. 



Symptom Charts 



Mac mini Troubleshooting - 15 



3. Make sure that the mezzanine board is properly seated on the logic board. 




4. Reassemble the computer and test. If the AirPort Extreme card is still not recognized, 
test with a known good AirPort Extreme card. If the known good card is recognized, 
replace the AirPort Extreme card. 

5. If a known good AirPort Extreme card is still not recognized, replace the mezzanine 
board and test the computer again. 

6. If a known good AirPort Extreme card and replacement mezzanine board does not 
resolved the issue, replace the logic board. 



16 - Mac mini Troubleshooting 



Symptom Charts 



Poor AirPort reception 

1 . Don't put anything on top of your Mac mini or stack Mac minis on top of each other 
either. If the Mac mini is configured with AirPort or Bluetooth, it could hamper the 
signal strength since the antennas are located in the top of the computer. 

When a Mac mini is configured with internal AirPort and Bluetooth modules, the 
antennas for both are located in the top of the computer, just under the white plastic 
that contains the Apple logo. 



,. . 




2. Check AirPort antenna cable for damage. Reseat AirPort antenna and cable. 

3. Try a known-good AirPort Extreme card. 

4. Reseat the mezzanine board. 

5. Replace the AirPort antenna. 

6. Replace the AirPort Extreme card. 

7. Replace the mezzanine board. 

8. Replace logic board. 



Symptom Charts 



Mac mini Troubleshooting - 17 



Can't Connect to the Internet over AirPort 

The Mac mini recognizes an AirPort Extreme Card installed, but cannot connect to the 
internet over AirPort. 

1 . If your Mac mini recognizes your AirPort Extreme card, but you are unable to connect 
to your network, try the steps outlined in Knowledge Base article 106858: AirPort 
Troubleshooting Guide. 

2. Reseat and replace the AirPort antenna if the above information does not resolve the 
issue. 

3. Make sure that the AirPort antenna is seated correctly to the AirPort Extreme Card. 
Refer to Knowledge Base article 108039: Properly attaching the antenna on an 
AirPort Extreme card. 

4. Make sure that the AirPort antenna is not damaged or warped on the receiver end of 
the cable. Make sure that this end is properly seated to the internal frame (as shown 
below). 



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5. Replace the AirPort antenna and test. 

6. If the issue persists, replace the AirPort Extreme card. 



18 - Mac mini Troubleshooting 



Symptom Charts 



BlueTooth 

The Mac mini does not recognize the Bluetooth board 

If the Mac mini does not recognize Bluetooth, the board may not be seated correctly or is 
inoperable. 

1 . Reseat the Bluetooth board making sure the board is securely connected to the 
mezzanine board. 




2. Check that the Bluetooth antenna is securely connected to the Bluetooth board. 




Symptom Charts 



Mac mini Troubleshooting - 19 



3. Make sure that the mezzanine board is properly seated on the logic board. 




4. Reassemble the computer and test. If the Bluetooth board is still not recognized, test 
with a known good Bluetooth board. If the known good board is recognized, replace 
the Bluetooth board. 

5. Replace the mezzanine board and test the computer again. 

6. Replace the logic board. 



The Mac mini recognizes a Bluetooth board, but cannot connect to the 
internet over Bluetooth 

If the Mac mini recognizes the Bluetooth board, but you are unable to pair your Apple 
Wireless Keyboard and Wireless Apple Mouse, try the steps outlined in Knowledge Base 
article 86496: Apple Wireless Keyboard and Mouse: Troubleshooting Connection Issues. 

1 . Make sure that the Bluetooth antenna is firmly connected to the Bluetooth board. 

2. Make sure that the Bluetooth antenna is not damaged or warped on the receiver end 
of the cable. Make sure that this end is properly seated to the internal frame of the 
Mac mini. 

3. Replace the Bluetooth antenna and test. 

4. If the issue persists, replace the Bluetooth board. 

5. Replace the mezzanine board. 

6. Replace the logic board. 



20 - Mac mini Troubleshooting 



Symptom Charts 



Battery 

The computer won't turn on 

1 . Make sure the electrical outlet works by plugging in a different device, or plug the 
computer into a different outlet. 

2. Check the power cord. Use a known good power cord. 

3. Check the connection of the power cord on both ends. Make sure that the plug is 
securely plugged into both the electrical outlet and the back of the computer. 

4. Disconnect the keyboard, mouse, and all other peripherals such as speakers. 

5. Remove the top housing and if necessary, remove the internal frame. 

6. Measure the voltage of the battery in the battery holder (see graphic below). The 
battery should measure 2.6V to 3.0V. If the battery does not have minimum voltage, 
replace the battery. After replacing the battery, wait 1 seconds and then reset the 
PMU (refer to Reset the PMU mentioned in this chapter). 




7. If the battery voltage is good, reset the Power Management Unit (PMU). Refer to: 
Reset the PMU mentioned in this chapter. 

8. Test the computer and return it to the customer. 



Symptom Charts 



Mac mini Troubleshooting - 21 



Computer does not retain parameter RAM (PRAM) settings 

1 . If the computer does not retain parameter RAM (PRAM) settings when it is turned off, 
this generally indicates that the battery needs to be changed. 

2. Measure the voltage of the battery in the battery holder (see graphic below). The 
battery should measure 2.6V to 3.0V. If the battery does not have minimum voltage, 
replace the battery. After replacing the battery, wait 1 seconds and then reset the 
PMU (refer to Reset the PMU mentioned in this chapter). 




3. If the battery voltage is good, reset the Power Management Unit (PMU). Refer to: 
Reset the PMU mentioned in this chapter. 

4. Test the computer and return it to the customer. 



22 - Mac mini Troubleshooting 



Symptom Charts 



Error Beeps 

The computer automatically performs a power-on self test when it is turned on after being 
fully shut down (not a restart). This section describes what to do if beeps are heard during 
the startup. 

Note: The computer has a memory expansion slot that accepts a 1 .25-inch (or shorter) 
PC-1 00 compliant, SO-DIMM memory card. Refer to the Memory Replacement 
instructions for removal and installation. 

Computer beeps at startup 

1 . Check that the memory DIMM is compliant. The Mac mini computers have a single 
memory slot. The slot accepts a standard PC2700 or PC3200 184-pin DIMM with the 
following specifications: 

PC2700 or PC3200 Synchronous DRAM (SDRAM) 

2.5 volt 

8-byte 

non-parity 

64-bit wide 

184-pin module 

maximum of 16 memory devices on the DIMM 

unbuffered — do not use registered or buffered SDRAM 

maximum height of 50 mm 

The Mac mini has a 256 MB base memory configuration, which can be expanded up 
to a maximum of 1 GB. 

2. Reseat the memory into the slot. 

3. Replace the memory. 

4. Replace the logic board. 



Symptom Charts 



Mac mini Troubleshooting - 23 



Optical Drive 

The optical disc drive does not accept discs (mechanical failure) 

1 . Verify disc is not warped. 

2. Try another known-good disc. 

3. Reseat the optical drive to the interconnect board. 

4. Replace optical drive. 

5. Replace the interconnect board 

6. Replace the logic board. 

The disc icon does not show up on the desktop, or a dialog box appears to 
initialize disc 

1 . Verify the correct type of disc is being used for the type of drive (a CD-ROM or CD-RW 
drive reads CD discs only; a DVD-ROM or Combo drive reads CD or DVD discs). 

2. Try cleaning the disc. If it is dirty or scratched, it may not mount. 

3. Try a different disc. 

4. Reseat optical drive to the interconnect board. 

5. Replace optical drive. 

6. Replace the interconnect board. 

7. Replace the logic board. 

The optical drive does not eject the disc 

1 . Verify disc is not in use by quitting any applications that may be using the disc. 

2. Press and hold Media Eject key at top right corner of Apple keyboard. If that does not 
work, hold down Function (fn) key and Media Eject key. 

3. Drag disc icon to trash or select it and press Command-E. 

4. Choose Restart from Apple menu while holding down the mouse button. 

5. Refer to Take Apart to remove the stuck disc and replace the optical drive. 
Related article: 

106752: Macintosh: How to Eject a Disc When Other Options Do Not Work 



24 - Mac mini Troubleshooting Symptom Charts 



Hard Drive 

Hard drive fails to boot to the desktop 

1 . Boot from Mac mini Mac OS X Install DVD and see if the hard drive mounts on the 
desktop. 

2. Run Apple Hardware Test (AHT), located on the install DVD. 

3. Run Disk Utility and correct any directory and permissions issues. 

4. Erase and reformat the drive. 

5. Verify that the hard drive is firmly connected to the interconnect board. 

6. Try a known-good hard drive. 

7. Erase and reformat the original drive. 

8. Try a known-good interconnect board. 

9. Replace hard drive. 

10. Replace interconnect board. 

11. Replace logic board. 

The internal hard drive does not spin 

1 . Disconnect any connected peripherals. 

2. Try known-good power outlet. 

3. Try known-good power cord. 

4. Boot from a Mac mini Mac OS X Install DVD. 

5. Run Apple Hardware Test (AHT), located on the install DVD. 

6. Run Disk Utility and correct any directory and permissions issues. 

7. Verify that the hard drive is connected to the interconnect board. 

8. Try a known-good hard drive. 

9. Erase and reformat the original drive. 

10. Try a known-good interconnect board. 

1 1 . Replace hard drive. 

12. Replace interconnect board. 

13. Replace logic board. 



Symptom Charts Mac mini Troubleshooting - 25 



System hangs during normal startup process 

1 . Boot from the Mac mini Mac OS X Install DVD that came with the computer and see if 
the hard drive mounts on the desktop. 

2. Run Apple Hardware Test (AHT), located on the install DVD. 

3. Run Disk Utility and correct any directory and permissions issues. 

4. Verify that the hard drive is connected to the interconnect board. 

5. Try a known-good hard drive. 

6. Erase and reformat the original drive. 

7. Try a known-good interconnect board. 

8. Replace hard drive. 

9. Replace interconnect board. 

10. Replace logic board. 

Flashing question mark appears on the screen 

1 . Boot from the Mac mini Mac OS X Install DVD that came with the computer and see if 
the hard drive mounts on the desktop. 

2. Run Apple Hardware Test (AHT), located on the install DVD. 

3. Run Disk Utility and correct any directory and permissions issues. 

4. Verify that the hard drive is connected to the interconnect board. 

5. Try a known-good hard drive. 

6. Try a known-good interconnect board. 

7. Replace hard drive. 

8. Replace interconnect board. 

9. Replace logic board. 



26 - Mac mini Troubleshooting Symptom Charts 



Keyboard 

No response from any key on the USB keyboard 

1 . Check that the mouse and keyboard are compliant. The Mac mini has two USB 2.0 
ports, which can be used with any USB 1 .1 - or USB 2.0-compliant keyboard and 
mouse. 

2. Remove any connected peripherals. 

3. Boot from the Mac mini Mac OS X system DVD to verify that it is not a software 
problem. 

4. Disconnect the keyboard connector and inspect connectors. 

5. Replace the keyboard. 

6. Replace the logic board. 

No response from the Wireless keyboard 

1 . Check System Profile to determine if the AirPort/Bluetooth are present. 

2. Try a known-good wireless keyboard. 

3. Replace the batteries in the wireless keyboard. 

4. Replace the keyboard. 

5. Remove the top housing. 

6. Check for kinks in the Bluetooth antenna cable. Test the reception before replacing the 
top housing. 

7. If the reception goes away when the top housing is replaced, remove the top housing 
and reseat the Bluetooth antenna on the internal frame. Test the reception again. 

8. Make sure that the Bluetooth antenna is firmly connected to the Bluetooth board. 

9. Make sure that the Bluetooth antenna is not damaged or warped on the receiver end 
of the cable. Make sure that the antenna is properly seated to the internal frame of the 
Mac mini. 

10. Replace the Bluetooth antenna and test. 

1 1 . If the issue persists, replace the Bluetooth board. 

12. Replace the mezzanine board. 

13. Replace the logic board. 



Symptom Charts Mac mini Troubleshooting - 27 



Modem 

No modem dial tone 

1 . Check that the internal modem is selected. Check System Preferences: Network 
setup. 

2. Verify known-good analog (not digital) telephone line. 

3. Verify known-good RJ-1 1 telephone cable. 

4. Verify RJ-1 1 cable is not plugged into Ethernet port. 

5. Inspect RJ-1 1 connector and modem port for pin damage. 

6. Verify RJ-1 1 telephone cable is firmly installed in the modem port. 

7. Verify RJ-1 1 connector is plugged into the modem board on the logic board. 

8. Replace RJ-1 1 connector/cable. 

9. Replace modem. 

10. Replace the logic board. 

Cannot send fax 

1 . Check that Network connection in System Preferences is set to Internal Modem. 

2. Refer to Knowledge Base article 25746: Mac OS X 1 0.3: Fax doesn't send. 

Cannot receive fax 

Check that "Receive faxes on this computer" is selected in the Print & Fax area of System 
Preferences. 

Related articles: 

25731 : Mac OS X 10.3: Receiving faxes and connecting to the Internet 
25596: Mac OS X 10.3: About Receiving Faxes. 

Modem drops connection 

1 . Try known-good phone line. 

2. Refer to Knowledge Base article 1 06748: Mac OS X: Troubleshooting a dial-up/PPP 
Internet connection. 



28 - Mac mini Troubleshooting Symptom Charts 



Ports 

The Fire Wire or USB port is not recognizing devices 

1 . Completely shut down, then press the power button to start the computer. 

2. Use Software Update in Mac OS X system preferences to verify that the latest 
software is installed. 

3. Use Apple System Profile to verify that the computer is recognizing the bus. 

4. For USB, test ports with a compliant keyboard or mouse. 

5. For FireWire, test by connecting another computer in FireWire Target Disk Mode. 
Refer to article 58583: How to Use FireWire Target Disk Mode. 

6. Verify that drivers are installed properly for third party, if needed. 

7. Try a different cable. 

8. Try known-good device. 

9. If self-powered make sure that the power supply is connected and device's LED 
indicates that it is getting power. 

10. Replace logic board. 

A USB device not recognized by computer 

Note: If you are trying to use a serial device with a USB/Serial adapter, check with the 
manufacturer of the adapter for compatibility. 

1 . Completely shut down, then press the power button to start the computer. 

2. Try known-good compliant USB keyboard or mouse to verify the port is working 
properly. 

3. Verify current driver for the device is installed. 

4. If the device is a camera, turn on camera after initiating download with camera 
application. 

5. Try the other USB port. 

6. Try known-good cable. 

7. Try different USB device on same port. 

8. Eliminate chain by plugging in only one peripheral. 

9. Replace logic board. 



Symptom Charts Mac mini Troubleshooting - 29 



Sound 

Distorted sound from speakers 

1 . Check balance in System Preferences: Sound: Output. Verify sound is correct with 
external speakers/headphones 

2. Check that speakers are inserted correctly, and check cables for damage. 

3. Compare same sound with two different units to make sure that sound is actually 
distorted. 

4. Remove the top housing and internal frame. 

5. Check that the speaker is seated correctly and screwed to the internal frame. 

6. Check for speaker cable damage and that the cable is securely connected to the 
interconnect board. 

7. Replace the speaker. 

8. Replace the interconnect board. 

9. Replace logic board. 

No sound from speaker(s) 

1 . Check balance in System Preferences: Sound: Output. Verify sound is correct with 
external speakers/headphones 

2. Verify no external speakers or headphones are plugged in. 

3. Shutdown computer and restart. 

4. Reset PRAM (Press the power button, then hold down the Option-Command-P-R 
keys until you hear the startup chime at least one additional time after the initial 
startup chime). 

5. Remove the top housing and internal frame. 

6. Check that the speaker is seated correctly and screwed to the internal frame. 

7. Check for speaker cable damage and that the cable is securely connected to the 
interconnect board. 

8. Replace the speaker. 

9. Replace the interconnect board. 

10. Replace logic board. 



30 - Mac mini Troubleshooting Symptom Charts 



Display 

No display, or dim display, but computer appears to operate correctly 

1 . Check that the display is compatible with the Mac mini. Refer to Knowledge Base 
article 300652: Mac mini: compatible Apple displays. 

2. Make sure that the monitor is turned on and has power. Make sure that the display's 
power cord is plugged into a working wall outlet, and that it's properly connected to the 
power adapter. (To check if the wall socket is working, plug in a lamp or other electrical 
device.) 

3. Check that all video cable connections to the computer video port and to the monitor 
are properly connected. 

4. Examine the pins on the video cable connector to make sure they are not bent or 
damaged in any way. 

5. Connect a known working display (if you have an extra one available). If you see video 
after doing so, replace your old display. 

6. If the known-good display shows the same issue, replace logic board. 

Scrambled or distorted video 

1 . Check that the display is compatible with the Mac mini. Refer to Knowledge Base 
article 300652: Mac mini: compatible Apple displays. 

2. Check connections on the back of the Mac mini. 

3. Check that you are using the correct adapter (if necessary). 

4. Try a known-good display. If the known-good display solves the issue, replace the 
display. 

5. If the known-good display shows the same issue, replace logic board. 
Fan Failure 

1 . Remove the top housing and the internal frame. 

2. Check fan cable connection to the interconnect board, and check cable for damage. 

3. Replace fan. 

4. Replace the interconnect board. 

5. Replace logic board. 



Symptom Charts Mac mini Troubleshooting - 31 



I Service Source 




Upgrades 



Mac mini 



© 2005 Apple Computer, Inc. All rights reserved. 




o.l AirPort and Bluetooth Upgrade 



Apple offers AirPort and Bluetooth as CTO (Configure to Order) options for Mac mini. For 
customers that buy the product in retail or want to add AirPort and Bluetooth later, Apple 
provides an upgrade kit for service providers. The upgrade kit includes both AirPort and 
Bluetooth. They are not available as separate upgrades through service. 

Note: If the Mac mini is ordered CTO (Configure to Order), AirPort and Bluetooth can be 
ordered separately. The customer can choose either one, or both if they order CTO. 

Tools 

This procedure requires the following tools: 

• Jeweler's #0 Phillips screwdriver 

• Kapton tape 

Preliminary Steps 

Before you begin, remove the top housing. 

Upgrade Kit Contents 



Mezzanine 
Board 



Bluetooth 
Antenna 




Bluetooth 
Card 



AirPort Extreme 
Card 



AirPort Antenna 



AirPort and Bluetooth Upgrade 



Mac mini Upgrades - 1 



Procedure 

1 . With a jeweler's # Phillips screwdriver, remove 3 screws on the internal frame. 




2. Free the power button cable from the kapton tape on the internal frame. 




2 - Power Mac G5 Upgrades 



AirPort and Bluetooth Upgrade 



3. Lift the internal frame straight up and set it aside. 




4. Locate the mezzanine board. 




AirPort and Bluetooth Upgrade 



Mac mini Upgrades - 3 



Turn over the mezzanine board so the AirPort Extreme card is facing down. Connect 
the mezzanine board to the connector on the logic board. Install the two screws on the 
mezzanine board. 




Double check that the AirPort and Bluetooth antenna cables are firmly connected 
before the internal frame is lowered into place. 




4 - Power Mac G5 Upgrades 



AirPort and Bluetooth Upgrade 



7. Locate the internal frame. 




8. Hold the internal frame over the logic board as shown. Route the AirPort and 
Bluetooth antenna cables up through the opening in the internal frame. 




b 



& 



AirPort and Bluetooth Upgrade 



Mac mini Upgrades - 5 



9. Lower the internal frame into place. 




10. Route the antenna cables to the right side of the interconnect board on the internal 
frame as you continue lowering the internal frame onto the logic board. 



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6 - Power Mac G5 Upgrades 



AirPort and Bluetooth Upgrade 



1 1 . Replace the three screws on the internal frame. 




12. Replace the Bluetooth antenna. Note: If you are performing an upgrade, secure the 
antenna cable with kapton tape. 




AirPort and Bluetooth Upgrade 



Mac mini Upgrades - 7 



13. Replace the AirPort antenna. Fasten the antenna onto the internal frame. The antenna 
is held in place by the black clip. Note: If you are performing an upgrade, secure the 
antenna cable with kapton tape. 




14. Secure the power button cable to the internal frame with the kapton tape. 




8 - Power Mac G5 Upgrades 



AirPort and Bluetooth Upgrade 



15. Replace the top housing. 



AirPort and Bluetooth Upgrade Mac mini Upgrades - 9 



I Service Source 




Views 



Mac mini 



© 2005 Apple Computer, Inc. All rights reserved. 



Exploded View 



Optical Drive 

661-3438, Combo, 24x, Slot 

661-3464, Super Drive, 4x 



Soft Modem Card 
922-6492 



BlueTooth Board 
922-6530 

Mezzanine Board 
922-6671 

BlueTooth Antenna 
661-6674 

AirPort Card 
661-3045 



Speaker Kit 
076-1175 

Not Shown: 

- Power Adapter, External 
661-3463 

- Power Cord, USA 
922-6676 

- DVI to VGA Adapter 
922-6675 

- Tape, Kapton 
922-1731 

- Battery 
922-6476 



Thermal Pad 

922-6749 

(Pkg. of 5) 




Top Housing 
922-6678 



Hard Drive 

661-3440, 80 GB, 2.5" 
661-3439, 40 GB, 2.5" 



SDRAM 

661-3465, 512 MB DDR 400 

661-3466, 256 MB, DDR 400 



Logic Board 
661-3461, 1.25 GHz 
661-3462, 1.42 GHz 




Interconnect Board 
922-6672 



AirPort Antenna 
922-6673 



Internal Frame 
922-6677 



Fan 
922-6696 



Bottom Housing\ 
with Thermal Pad 
076-1163 



Exploded View 



Mac mini Views - 1 



Mac mini Screw Matrix 



Note: These are not to scale. 



922-6682 


922-6683 


922-6684 


Jeweler's #0 Phillips 


Jeweler's #0 Phillips 


Jeweler's #0 Phillips 


4^ 


T 


T 


• Fan to internal frame 
(2) 


• Internal frame to logic 
board (3) 


• Logic board (1) 


922-6681 


922- 6680 


076-1 175 (kit) 


#2 Phillips 


Jeweler's #0 Phillips 


Includes grommets, 
screws, speaker, bracket 


9 


|p 




• Hard drive to internal 
frame (4) 


• Mezzanine board to 
logic board (2) 

• Interconnect board to 
the optical drive (2) 

• Modem to logic board 
(2) 

• Bluetooth board to the 
mezzanine board (2) 

• Optical drive to the 
internal frame (4) 


• Speaker to internal 
frame (4) 



Mac mini Views 



Mac mini Screw Matrix